ICS841484I datasheet(1/28 Pages) RENESAS

номер детали	ICS841484I

подробное описание детали	FemtoClock® Crystal-to-0.7V Differential HCSL Clock Generator

PDF	28 Pages

Scroll/Zoom	100%

производитель	RENESAS [Renesas Technology Corp]

домашняя страница	http://www.renesas.com

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DATA SHEET

ICS841484DKI REVISION A NOVEMBER 7, 2012

1

FemtoClock® Crystal-to-0.7V Differential

HCSL Clock Generator

ICS841484I

General Description

The ICS841484I is an optimized PCIe and sRIO clock generator.

The device uses a 25MHz parallel resonant crystal to generate

100MHz, 125MHz, 200MHz and 400MHz clock signals, replacing

solutions requiring multiple oscillator and fanout buffer solutions. The

device has excellent phase jitter suitable to clock components

requiring precise and low jitter PCIe, sRIO or both clock signals. The

device also supports a configurable spread-spectrum generation for

PCIe applications. Designed for telecom, networking and industrial

applications, the ICS841484I can also drive the high-speed sRIO

and PCIe SerDes clock inputs of communications processors,

DSPs, switches and bridges.

Features

• Four 0.7V differential HCSL outputs: configurable for PCIe

(100MHz or 200MHz) and sRIO (125MHz) clock signals

• One LVCMOS/LVTTL reference clock output

• Selectable crystal oscillator interface, 25MHz, 18pF parallel

resonant crystal or LVCMOS/LVTTL single-ended reference clock

input

• Supports the following output frequencies: 100MHz, 125MHz,

200MHz or 400MHz

• VCO frequency range: 950MHz - 1.25GHz

• Configurable spread-spectrum generation for PCIe

• PLL bypass and output enable

• RMS phase jitter @ 200MHz, using a 25MHz crystal

(12kHz – 20MHz): 1.21ps (typical)

• PCI Express (2.5 Gb/S), Gen 2 (5 Gb/s) and Gen 3 (8 Gb/s) jitter

compliant (REF_OUT disabled)

• Full 3.3V operating supply

• -40°C to 85°C ambient operating temperature

• Available in lead-free (RoHS 6) packages

0

1

0

M =

÷

÷40, ÷÷48

OSC

FemtoClock

PLL

Spread-Spectrum

Q0

REF_OUT

nQ0

Q1

nQ1

Q2

nQ2

Q3

nQ3

Pulldown

Pullup:Pulldown

Pulldown

XTAL_IN

XTAL_OUT

REF_IN

OE_REFOUT

REF_SEL

IREF

SSM

FSEL[1:0]

MR/nOE

BYPASS

2

25MHz

÷

=

N

Block Diagram

Pin Assignment

9 10 11 12 13 14 15 16

32 31 30 29 28 27 26 25

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

XTAL_IN

XTAL_OUT

MR/nOE

VDD

Q0

nQ0

Q1

nQ1

VDD

FSEL1

FSEL0

REF_OUT

OE_REFOUT

GND

nc

ICS841484I

32-Lead VFQFN

5mm x 5mm x 0.925mm

package body

K Package

Top View

Аналогичный номер детали - ICS841484I

производитель	номер детали	датащи	подробное описание детали
Renesas Technology Corp	ICS841402I	915Kb / 28P	FemtoClock® Crystal-to-0.7V Differential HCSL Clock Generator 2019

More results

Аналогичное описание - ICS841484I

производитель	номер детали	датащи	подробное описание детали
Integrated Device Techn...	ICS841664I	312Kb / 16P	FEMTOCLOCK??CRYSTAL-TO-HCSL CLOCK GENERATOR
	ICS841664AGILFT	311Kb / 19P	FemtoClock Crystal-to-HCSL Clock Generator
	ICS841664I	374Kb / 19P	FemtoClock Crystal-to-HCSL Clock Generator
Renesas Technology Corp	841604	612Kb / 18P	FemtoClock® NG Crystal-to-HCSL Clock Generator 4/17/15
	841608	1Mb / 20P	FemtoClock® Crystal-to-HCSL Clock Generator January 31, 2023
	ICS841604I-01	551Kb / 20P	FemtoClock® Crystal-to-0.7V Differential APRIL 10, 2012
	ICS841664I	662Kb / 20P	FemtoClock® Crystal-to-HCSL Clock Generator JULY 15, 2013
	IDT8V41N004I	1Mb / 27P	FemtoClock® NG Crystal-to-HCSL Clock Generator 2019
	841654	492Kb / 19P	FemtoClock® NG Crystal-to-HCSL Clock Generator 2019
	ICS841402I	915Kb / 28P	FemtoClock® Crystal-to-0.7V Differential HCSL Clock Generator 2019

More results

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